Zinx, Perfected Experiment

Suspend 2 - 3{u}{g}
Reach
At the beginning of your upkeep you get {e}. You may pay {e}{e}{e} instead to prevent half of the damage Zinx would take this turn, rounded down.
{e}: Put a -1/-1 counter on target creature dealt damage by Zinx this turn.
{e}{e}{t}: Deal 1 damage up to two target creatures.
{1}{x}: Exert X attacking creatures.